HÄMARIK, Uno; PALM, Reimo. On rules for stopping the conjugate gradient type methods in ill‐posed problems. Mathematical Modelling and Analysis, [S. l.], v. 12, n. 1, p. 61–70, 2007. DOI: 10.3846/1392-6292.2007.12.61-70. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/7094. Acesso em: 2 jun. 2025.